The Elastomer Stud Cock Ring is available in three colors: Purple, Blue and Black. Each sold separately. Elastomer Stud Cock Ring features spikes, which create an alternative look. Elastomer is a stretchy, highly flexible material. Known for its extreme elasticity, elastomer is the perfect material for cock rings. The role of a cock ring is to provide constriction, this constriction slows the flow of blood from the erect penis creating an erection that not only lasts longer but is also thicker and harder. Because of its extreme elasticity elastomer provides the maximum constriction of any product on the market. Elastomer returns back to its original shape as soon as it is removed and can be used over and over again. Compatible with all lubricants and 100% skin safe elastomer is not only a great tight fit but a very versatile one too. Elastomers durability and longevity make it a smart choice for long lasting, high quality toys like Spartacus Cock Rings. Free of latex and phthalates, elastomer can be used with any lubricant, oil, or cream. Elastomer Stud Cock Ring Blue from Spartacus Leathers A Passion for Quality Catalog page 23. New images added February 1, 2013.